1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/*-
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char rcsid[] = "$OpenBSD: sysctl.c,v 1.6 2004/05/18 02:05:52 jfb Exp $";
#endif /* LIBC_SCCS and not lint */
#include <sys/param.h>
#include <sys/sysctl.h>
#include <errno.h>
#include <limits.h>
#include <paths.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
int __sysctl(int *, u_int, void *, size_t *, void *, size_t);
int
sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp,
size_t newlen)
{
if (name[0] != CTL_USER)
return (__sysctl(name, namelen, oldp, oldlenp, newp, newlen));
if (newp != NULL) {
errno = EPERM;
return (-1);
}
if (namelen != 2) {
errno = EINVAL;
return (-1);
}
switch (name[1]) {
case USER_CS_PATH:
if (oldp && *oldlenp < sizeof(_PATH_STDPATH))
return (ENOMEM);
*oldlenp = sizeof(_PATH_STDPATH);
if (oldp != NULL)
memmove(oldp, _PATH_STDPATH, sizeof(_PATH_STDPATH));
return (0);
}
if (oldp && *oldlenp < sizeof(int))
return (ENOMEM);
*oldlenp = sizeof(int);
if (oldp == NULL)
return (0);
switch (name[1]) {
case USER_BC_BASE_MAX:
*(int *)oldp = BC_BASE_MAX;
return (0);
case USER_BC_DIM_MAX:
*(int *)oldp = BC_DIM_MAX;
return (0);
case USER_BC_SCALE_MAX:
*(int *)oldp = BC_SCALE_MAX;
return (0);
case USER_BC_STRING_MAX:
*(int *)oldp = BC_STRING_MAX;
return (0);
case USER_COLL_WEIGHTS_MAX:
*(int *)oldp = COLL_WEIGHTS_MAX;
return (0);
case USER_EXPR_NEST_MAX:
*(int *)oldp = EXPR_NEST_MAX;
return (0);
case USER_LINE_MAX:
*(int *)oldp = LINE_MAX;
return (0);
case USER_RE_DUP_MAX:
*(int *)oldp = RE_DUP_MAX;
return (0);
case USER_POSIX2_VERSION:
*(int *)oldp = _POSIX2_VERSION;
return (0);
case USER_POSIX2_C_BIND:
#ifdef POSIX2_C_BIND
*(int *)oldp = 1;
#else
*(int *)oldp = 0;
#endif
return (0);
case USER_POSIX2_C_DEV:
#ifdef POSIX2_C_DEV
*(int *)oldp = 1;
#else
*(int *)oldp = 0;
#endif
return (0);
case USER_POSIX2_CHAR_TERM:
#ifdef POSIX2_CHAR_TERM
*(int *)oldp = 1;
#else
*(int *)oldp = 0;
#endif
return (0);
case USER_POSIX2_FORT_DEV:
#ifdef POSIX2_FORT_DEV
*(int *)oldp = 1;
#else
*(int *)oldp = 0;
#endif
return (0);
case USER_POSIX2_FORT_RUN:
#ifdef POSIX2_FORT_RUN
*(int *)oldp = 1;
#else
*(int *)oldp = 0;
#endif
return (0);
case USER_POSIX2_LOCALEDEF:
#ifdef POSIX2_LOCALEDEF
*(int *)oldp = 1;
#else
*(int *)oldp = 0;
#endif
return (0);
case USER_POSIX2_SW_DEV:
#ifdef POSIX2_SW_DEV
*(int *)oldp = 1;
#else
*(int *)oldp = 0;
#endif
return (0);
case USER_POSIX2_UPE:
#ifdef POSIX2_UPE
*(int *)oldp = 1;
#else
*(int *)oldp = 0;
#endif
return (0);
case USER_STREAM_MAX:
*(int *)oldp = FOPEN_MAX;
return (0);
case USER_TZNAME_MAX:
*(int *)oldp = NAME_MAX;
return (0);
default:
errno = EINVAL;
return (-1);
}
/* NOTREACHED */
}
|
